Learn PK/PD

April 9, 2015
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This is a good blog!
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UK General Election 2015: using PROC MAPIMPORT to visualise the election

April 9, 2015
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Election fever has hit the United Kingdom as the days count down to 7th May 2015.  This is likely to be one of the most uncertain elections in recent memory, with nearly 10 parties struggling for votes across England, Scotland, Wales and Northern Ireland.  Results night will be tense, with the different

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Compute the rank of a matrix in SAS

April 8, 2015
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Compute the rank of a matrix in SAS

A common question from statistical programmers is how to compute the rank of a matrix in SAS. Recall that the rank of a matrix is defined as the number of linearly independent columns in the matrix. (Equivalently, the number of linearly independent rows.) This article describes how to compute the

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Variations on a stickman graph: Analyzing the Twitter minions

April 7, 2015
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One of our customers asked if I could show him how to reproduce a stickman graph that David McCandless (ala, Information is Beautiful) had created. I'm not sure that it's the best kind of graph for the occasion, but of course SAS can be used to create it! ... David's

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Let’s talk at SAS Global Forum 2015

April 6, 2015
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The 2015 SAS Global Forum is in Dallas, TX, and I'll be there. There are many talks to see and people to meet, so thank goodness for the agenda builder, which enables you to create a schedule in advance. I always enjoy talking with SAS customers about statistics, simulations, matrix

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How to compare SAS programs in SAS Enterprise Guide

April 3, 2015
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How to compare SAS programs in SAS Enterprise Guide

Copy/paste is my favorite method for creating new SAS programs. In my work projects, I maintain a sort of genealogy of SAS programs, because the DNA of one program can be used to spawn many other SAS programs as its progeny. When things (inevitably) aren't working as I intend in

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Where are the world’s best roller coasters?

April 3, 2015
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Would you rather see a list of the world's 50 best roller coasters, or an interactive map? (... how about both!) Before we get started on this ride, here's a picture of my friend Jennifer's daughter, getting an early/young start on riding roller coasters (she's in the back, with her

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A Whirlwind in Winnipeg

April 2, 2015
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I never feel that I have enough time in this city. Typically I'm flying in fairly late at night from Saskatchewan and snatching a late dinner before bed... then a fast morning meeting, an efficient lunch and a sprint to the airport. One of these days I...
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Drilling down on fracking graphs

April 2, 2015
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The topic of fracking has been in the news a lot lately - this blog post explores some of the finer points of plotting opinion data related to fracking ... I recently saw the following graph on dadaviz.com. It showed some interesting data, and presented the data in a way

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